Did you create The Gashlycrumb Tinies? - Yes, Edward Gorey
Were you namechecked in a song by Mr. Banks in Mary Poppins? - King Edward VII, in “The Life I Lead” (“It’s grand to be an Englishman in 1910 / King Edward’s on the throne; it’s the age of men!..”)
Were you a noted Irish freedom-fighter in the 1790s? - Edward FitzGerald
Edward x3!
DQs:
American?
Best known for sf/fantasy?
IQs:
Were you portrayed as a crime-solving West Point cadet in a recent movie?
Did you spend an awful lot of time with Clyde Tolson?
Did you write Spoon River Anthology?
Were you portrayed as a crime-solving West Point cadet in a recent movie? - Yes, Edgar Allan Poe, in The Pale Blue Eye
Did you spend an awful lot of time with Clyde Tolson? - FBI Director J. Edgar Hoover (Tolson was his top aide, and they were long rumored to be lovers)
Did you write Spoon River Anthology? - Edgar Lee Masters (but yes, Prof. P. asked about him first)
Edgar x3!
DQ:
Greatest fame before 1950?
IQs:
Was your ship transformed to what we know as Venus?
Did you sleep under a red-and-white-checked quilt when you visited Oyster Bay?
Did you marry Mr. Knightley, but your hypochondriacal dad still lived with you?
Were you sentenced to death for your part in the 1916 Easter Rising, but spared (thanks in part to your American citizenship) and later went on to become the Republic of Ireland’s second Taoiseach and third President?
Did you say the mass of Englishmen live lives of quiet desperation?